/*
   Bacula(R) - The Network Backup Solution

   Copyright (C) 2000-2025 Kern Sibbald

   The original author of Bacula is Kern Sibbald, with contributions
   from many others, a complete list can be found in the file AUTHORS.

   You may use this file and others of this release according to the
   license defined in the LICENSE file, which includes the Affero General
   Public License, v3.0 ("AGPLv3") and some additional permissions and
   terms pursuant to its AGPLv3 Section 7.

   This notice must be preserved when any source code is
   conveyed and/or propagated.

   Bacula(R) is a registered trademark of Kern Sibbald.
*/
/*
 * Taken from the public domain ansitape program for
 *   integration into Bacula. KES - Mar 2005
 */


/* Mapping of EBCDIC codes to ASCII equivalents. */
static char to_ascii_table[256] = {
   '\000', '\001', '\002', '\003',
   '\234', '\011', '\206', '\177',
   '\227', '\215', '\216', '\013',
   '\014', '\015', '\016', '\017',
   '\020', '\021', '\022', '\023',
   '\235', '\205', '\010', '\207',
   '\030', '\031', '\222', '\217',
   '\034', '\035', '\036', '\037',
   '\200', '\201', '\202', '\203',
   '\204', '\012', '\027', '\033',
   '\210', '\211', '\212', '\213',
   '\214', '\005', '\006', '\007',
   '\220', '\221', '\026', '\223',
   '\224', '\225', '\226', '\004',
   '\230', '\231', '\232', '\233',
   '\024', '\025', '\236', '\032',
   '\040', '\240', '\241', '\242',
   '\243', '\244', '\245', '\246',
   '\247', '\250', '\133', '\056',
   '\074', '\050', '\053', '\041',
   '\046', '\251', '\252', '\253',
   '\254', '\255', '\256', '\257',
   '\260', '\261', '\135', '\044',
   '\052', '\051', '\073', '\136',
   '\055', '\057', '\262', '\263',
   '\264', '\265', '\266', '\267',
   '\270', '\271', '\174', '\054',
   '\045', '\137', '\076', '\077',
   '\272', '\273', '\274', '\275',
   '\276', '\277', '\300', '\301',
   '\302', '\140', '\072', '\043',
   '\100', '\047', '\075', '\042',
   '\303', '\141', '\142', '\143',
   '\144', '\145', '\146', '\147',
   '\150', '\151', '\304', '\305',
   '\306', '\307', '\310', '\311',
   '\312', '\152', '\153', '\154',
   '\155', '\156', '\157', '\160',
   '\161', '\162', '\313', '\314',
   '\315', '\316', '\317', '\320',
   '\321', '\176', '\163', '\164',
   '\165', '\166', '\167', '\170',
   '\171', '\172', '\322', '\323',
   '\324', '\325', '\326', '\327',
   '\330', '\331', '\332', '\333',
   '\334', '\335', '\336', '\337',
   '\340', '\341', '\342', '\343',
   '\344', '\345', '\346', '\347',
   '\173', '\101', '\102', '\103',
   '\104', '\105', '\106', '\107',
   '\110', '\111', '\350', '\351',
   '\352', '\353', '\354', '\355',
   '\175', '\112', '\113', '\114',
   '\115', '\116', '\117', '\120',
   '\121', '\122', '\356', '\357',
   '\360', '\361', '\362', '\363',
   '\134', '\237', '\123', '\124',
   '\125', '\126', '\127', '\130',
   '\131', '\132', '\364', '\365',
   '\366', '\367', '\370', '\371',
   '\060', '\061', '\062', '\063',
   '\064', '\065', '\066', '\067',
   '\070', '\071', '\372', '\373',
   '\374', '\375', '\376', '\377'
};


/* Mapping of ASCII codes to EBCDIC equivalents. */
static char to_ebcdic_table[256] = {
   '\000', '\001', '\002', '\003',
   '\067', '\055', '\056', '\057',
   '\026', '\005', '\045', '\013',
   '\014', '\015', '\016', '\017',
   '\020', '\021', '\022', '\023',
   '\074', '\075', '\062', '\046',
   '\030', '\031', '\077', '\047',
   '\034', '\035', '\036', '\037',
   '\100', '\117', '\177', '\173',
   '\133', '\154', '\120', '\175',
   '\115', '\135', '\134', '\116',
   '\153', '\140', '\113', '\141',
   '\360', '\361', '\362', '\363',
   '\364', '\365', '\366', '\367',
   '\370', '\371', '\172', '\136',
   '\114', '\176', '\156', '\157',
   '\174', '\301', '\302', '\303',
   '\304', '\305', '\306', '\307',
   '\310', '\311', '\321', '\322',
   '\323', '\324', '\325', '\326',
   '\327', '\330', '\331', '\342',
   '\343', '\344', '\345', '\346',
   '\347', '\350', '\351', '\112',
   '\340', '\132', '\137', '\155',
   '\171', '\201', '\202', '\203',
   '\204', '\205', '\206', '\207',
   '\210', '\211', '\221', '\222',
   '\223', '\224', '\225', '\226',
   '\227', '\230', '\231', '\242',
   '\243', '\244', '\245', '\246',
   '\247', '\250', '\251', '\300',
   '\152', '\320', '\241', '\007',
   '\040', '\041', '\042', '\043',
   '\044', '\025', '\006', '\027',
   '\050', '\051', '\052', '\053',
   '\054', '\011', '\012', '\033',
   '\060', '\061', '\032', '\063',
   '\064', '\065', '\066', '\010',
   '\070', '\071', '\072', '\073',
   '\004', '\024', '\076', '\341',
   '\101', '\102', '\103', '\104',
   '\105', '\106', '\107', '\110',
   '\111', '\121', '\122', '\123',
   '\124', '\125', '\126', '\127',
   '\130', '\131', '\142', '\143',
   '\144', '\145', '\146', '\147',
   '\150', '\151', '\160', '\161',
   '\162', '\163', '\164', '\165',
   '\166', '\167', '\170', '\200',
   '\212', '\213', '\214', '\215',
   '\216', '\217', '\220', '\232',
   '\233', '\234', '\235', '\236',
   '\237', '\240', '\252', '\253',
   '\254', '\255', '\256', '\257',
   '\260', '\261', '\262', '\263',
   '\264', '\265', '\266', '\267',
   '\270', '\271', '\272', '\273',
   '\274', '\275', '\276', '\277',
   '\312', '\313', '\314', '\315',
   '\316', '\317', '\332', '\333',
   '\334', '\335', '\336', '\337',
   '\352', '\353', '\354', '\355',
   '\356', '\357', '\372', '\373',
   '\374', '\375', '\376', '\377'
};


/*
 * Convert from ASCII to EBCDIC
 */
void ascii_to_ebcdic(char *dst, char *src, int count)
{
   while (count--) {
      *dst++ = to_ebcdic_table[0377 & *src++];
   }
}


/*
 * Convert from EBCDIC to ASCII
 */
void ebcdic_to_ascii(char *dst, char *src, int count)
{
   while (count--) {
      *dst++ = to_ascii_table[0377 & *src++];
   }
}
